Residential lp patio heater black. It is a family series residential lp gas outdoor patio heater. This patio heater heats up to 18 feet circle. It provides superior performance. It uses commonly available liquid propane gas (tank not included). It has an adjustable heat setting. It is made of weather-resistant stainless steel finish. It has a safety tilt switch. This heater heats between 24,000 - 40,000 BTU and it has an adjustable stainless steel burner.